package api.string;

/**
 * String和StringBuilderder的对比
 */
public class StringStringBuilderDemo {
    public static void main(String[] args) {
        //String不是合频繁修改内容(效率低)
        StringBuilder builder = new StringBuilder("a");
        for (int i = 0; i < 10000000; i++) {
            builder.append(i);
        }

        System.out.println("执行完毕");
    }
}
